diff --git a/hecl/extern/boo b/hecl/extern/boo
index b5f1657df..edf2c1e34 160000
--- a/hecl/extern/boo
+++ b/hecl/extern/boo
@@ -1 +1 @@
-Subproject commit b5f1657dffc83eb1a62a761a2b5c09e985e043ef
+Subproject commit edf2c1e34df6a27e287dcea1f80f677ce51133f9